Sewer-trap



(No Model.)

C. KNISPEL.

y SEWER TRAP.

No. 541,208. PatentedJun'e 18, 1895.

WITNESSES: INVENTOR.'

JWM @Hmmm KMSPEL.

. UNITED STATES PATENT OEEICE.

CHRISTIAN KNISPEL, OF NEWARK, NEW JERSEY.

SEWER-TRAP.

SPECIFICATION forming part of Letters Patent No. 541,208, dated June 18,1895.

Application filed February 5| 1895. Serial No. 537.328. (No model) .Toa/ZZ whom it may concern:

Be it known that I, CHRISTIAN KNISPEL, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Sewer-Traps; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable othersskilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference markedthereon, whichform a part of this specification.

My present invention has for its primary object to provide a cheap andserviceable sewer trap, to be used more especially in waste pipes underthe floor, such as the pipes connected with bath tubs, where there isinsufcient space between the bottom ot' the tub and the floor, to placea sewer trap.

The invention therefore consists in the novel construction of trapherein shown, and in the minor arrangements and combinations of parts tobe hereinafter fully described and finally embodied in the clauses ofthe claim.

The invention is illustrated in the accompanying sheet of drawings, inwhich- Figure l is a sectional View of my novel form of sewertrap andthe piping connected therewith, illustrating, in connection with theoutflow from the trap-basin, the arrangement ot a check-valve. Fig. 2 isa plan view of the trap-casing and a removable top or cover used inconnection with this form of sewer-trap, and Fig. 3 is a side view ofsaid cover. Fig. 4 is a plan view of the check-valve used in connectionwith the device.

In said drawings, A indicates the sewer trap, which consists,essentially of the trap casing a, arranged in the piping underneath theiloor in the manner to be more fully described hereinafter. Said casingis provided in its upper portion with an annular recess or shoulder cton which is placed a rubber gasket or packing ring b. On the upper edgeof said casing a are a suitable number of holding lugs or projectionsa2. .Upon said annular shoulder or recess a is removably arranged asolid cover or plate c provided with oppositely placed cutaway portionsc, to enable said plate or cover Vthe trap and the pipe e.

vShould the trap, for some reason, require I cleaning out, all that isnecessary is to turn the plate or cover c in the direction opposite fromthat indicated by the arrow in Fig. 2, on its seat in the trap casing u,andthe parts can be easily cleaned. As an extra precaution, the saidcasing tt may be provided in the bottom with a throat a3 which is closedby means'v of a removable cap or cover a4.

As will be seen from Fig. l, the casing a is provided in the side withan opening a5 through which passes, and is suitably secured therein toprevent leakage, an inlet or waste pipe d which brings the waste waterfrom the bath tub or other fixture into the trap basin. This pipe d isprovided within said casing (t with an elbow d. which terminates in thedischarge outlet d2 near the bottom of the casin g.

In any other suitable part of the casing ct, near the top thereof, is asecond opening a5 in which is secured the end of any suitable form ofoverflow pipe d connected with the main sewer pipe leading from thebuilding, as will be clearly understood. Said pipe e is preferablyprovided with a suitable elbow e', which is open at its free end and isprovided with a suitable check valve therein, operating to permit theentrance of a supply of fresh air into the pipe and into the trap A, butcloses automatically when there is an excess of water in The admissionof air into the trap also prevents the siphoning of the casing a, aswill be clearly evident. The construction of this form of Ventilatingvalve consists essentially in the arrangement of a plate '11 resting ona suitable cross bar t" which is inclined across the pipe, as shown.When said plate Il lifts to permit the entrance of the air into the pipee, it strikes a corrugated bar 10o fil, which, owingtorsaidcorrugations,prevents the sticking of said plate against the bar when the parts arewet and hence the plate t' drops back into its former and closedposition, as will be understood.

The advantages derived from my novel form of sewer trap will be evidentfrom the above description.

The sanitary condition is greatly improved, and in case ofa stoppage inthe pipes, the cover of the trap casing can be quickly removed and aforce pump entered'without removing bolts, dac.

The trap can be readily cleaned 'oy servants without the aid of aplumber, as will be evident.

Having thus described my invention, what I claim isl. The hereindescribed sewer trap A, coinprising therein, a casing a., havingaremovably arranged cover or plate in the top, an opening a5 in onesideot said casing, an inlet pipe, as d, extending into said casing anelbow d and a downwardly extending pipe cl2 terminating near the bottomof said casing, and an outlet pipe e, extending from an opening a6 insaid casing, substantially as and for the purposes set forth.

2. The herein described sewer trap A, comprising therein, acasingct,havingaremovably arranged cover or plate in the top, an opening a? inone side of said casing, an inletpipe, as (i, extending kinto saidcasing an elbow d and a downwardly extending pipe (Z2 terminating nearthe bottom of said casing, an outlet pipe e, extending from an openinga6 in said casing, and anl elbow in said pipe e having a check valvetherein, substantially as and for the purposes set forth.

3. The herein described sewer trap A, consisting essentially, of a.casin g a, having an annular recess or shoulder a,a packing ring on saidshoulder, a cover on said ring, means for causing the locked engagementof said cover with said casing, consisting of cut-away portions in saidcover and inclines thereon, and holding portions or lugs on the casing awith which said inclines are to be engaged, an opening .a5 in one sideof said casing, an inlet pipe, as d, extending into said casing an elbowd' and a downwardly extending pipe d2 terminating near the bottom ofsaid casing, and an outlet pipe e extending from an opening av in saidcasing, substantially as and for the pnrposes set forth.

4. The herein described sewer trap A, consisting essentially, of acasing a, having n throat in the bottom and a removable cap or coverover the same, an annular shoulder orv recess c in said casing, a packedring on said shoulder, a cover ou said ring, means for causing thelocked engagement of said cover with said casing, consisting of cut-awayportions in said cover and inclines thereon, and holding portions orlugs on the casing a, with which said inclines are to be engaged, an0pening a5, in one side ofsaid casing, an inlet pipe, d, extending intosaid casing an elbow d' and a downwardly extending pipe cl2 termi natingnear the bottomof said casing, and an outlet pipe e extending from anopening a in said casing,.substantially as and for the pur poses setforth.

In testimony that I claim the invention sei: forth above I have hereuntoset my hand this 18th day of January, 1895.

CHRISTIAN KNISPEI..

Witnesses:

FREDK. C. FRAENTZEL, WM. H. CAMFIELD, Jr.

